Daily Celestial Overview
Key timings for Thursday, October 8
Planetary Hours in Yerevan This Week
| Date | Day ruler | First hour starts | Daytime hour | Nighttime hour |
|---|---|---|---|---|
| Thursday, Oct 8 | ♃ Jupiter | 7:04 AM | 57 min | 63 min |
| Friday, Oct 9 | ♀ Venus | 7:05 AM | 57 min | 63 min |
| Saturday, Oct 10 | ♄ Saturn | 7:06 AM | 57 min | 63 min |
| Sunday, Oct 11 | ☉ Sun | 7:07 AM | 57 min | 63 min |
| Monday, Oct 12 | ☽ Moon | 7:08 AM | 57 min | 64 min |
| Tuesday, Oct 13 | ♂ Mars | 7:10 AM | 56 min | 64 min |
| Wednesday, Oct 14 | ☿ Mercury | 7:11 AM | 56 min | 64 min |
Today's Hours by Planet in Yerevan
Planetary Hours in Yerevan Through 2026
At 40.2° N, the seasons reshape the hours: a daytime hour in Yerevan lasts 47 minutes around Dec 21 and 75 around Jun 21, while the night hours move the opposite way.
Yerevan lies west of the meridian its clocks follow (UTC+4), so the Sun, and with it the first planetary hour, runs about 62 minutes behind the clock: noon by the Sun comes near 1:02 PM standard time.
The shortest day is not the darkest at both ends: Yerevan's earliest sunset comes 19 days before it, on Dec 2, and its latest sunrise 11 days after it, on Jan 1, because solar noon drifts through the year.
| In 2026 | Shortest / earliest | Longest / latest |
|---|---|---|
| Daytime hour | 46.6 min, Dec 21 | 75.2 min, Jun 21 |
| Sunrise (first hour) | 5:31 AM, Jun 10 | 8:24 AM, Jan 1 |
| Sunset (first night hour) | 5:36 PM, Dec 2 | 8:35 PM, Jun 21 |
How These Times Are Calculated
Twelve equal hours run from sunrise to sunset and twelve from sunset to the next sunrise, starting with the weekday's ruler and following the Chaldean order. Every time on this page, today's and the year's, is computed with the Swiss Ephemeris for these coordinates.
Frequently Asked Questions
How long is a planetary hour in Yerevan?
Today a daytime hour in Yerevan lasts about 57 minutes and a nighttime hour about 63. Over 2026 the daytime hour ranges from 47 minutes (Dec 21) to 75 (Jun 21).
Do planetary hours in Yerevan change with daylight saving time?
No. Yerevan stays on UTC+4 all year, so its hours shift only a minute or two a day with the seasons.